That link refers to forum posts for January. Firefox has only been supported officially on stable versions since May. https://addons.mozilla.org/en-US/firefox/

That link refers to forum posts for January. Firefox has only been supported officially on stable versions since May. https://addons.mozilla.org/en-US/firefox/addon/1password-x-password-manager/versions/ https://addons.mozilla.org/en-US/firefox/addon/1password-x-p... It's now as easy as adding the extension and logging in.